Keystones — Bedrock
Five GCSE retrieval questions · 24 September 2016 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 21 + 41
Answer: 21 + 41 = 62 -
2. Algebra Substitution
If x = 3, find the value of 7x + 4
Answer: 25 -
3. Geometry Converting lengths
Convert 15m to cm
Answer: 1500cm -
4. Ratio Simplifying ratios
Simplify the ratio 21:12
Answer: 7:4 -
5. Statistics Mean
Find the mean of: 14, 10, 12, 4, 20
Answer: 12